path: root/scripts
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authorMasahiro Yamada <masahiroy@kernel.org>2019-12-19 17:33:28 +0900
committerMasahiro Yamada <masahiroy@kernel.org>2020-01-07 02:18:39 +0900
commit1664a377908ed6096680e9d7cfd28facef2194f2 (patch)
tree7d850c9a98fc520feb9acb2577dc471a397f896f /scripts
parentkbuild: add stringify helper to quote a string passed to C files (diff)
kbuild: pass KBUILD_MODFILE when compiling builtin objects
When compiling, Kbuild passes KBUILD_BASENAME (basename of the object) and KBUILD_MODNAME (basename of the module). This commit adds another one, KBUILD_MODFILE, which is the path of the module. (or, the path of the module it would end up in if it were compiled as a module.) The next commit will use this to generate modules.builtin without tristate.conf. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Diffstat (limited to 'scripts')
1 files changed, 9 insertions, 6 deletions
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index e5e5339bb575..d10f7a03e0ee 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -84,12 +84,14 @@ multi-used-m := $(addprefix $(obj)/,$(multi-used-m))
subdir-ym := $(addprefix $(obj)/,$(subdir-ym))
# Finds the multi-part object the current object will be linked into.
-# If the object belongs to two or more multi-part objects, all of them are
-# concatenated with a colon separator.
-modname-multi = $(subst $(space),:,$(sort $(foreach m,$(multi-used),\
- $(if $(filter $*.o, $($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-m))),$(m:.o=)))))
+# If the object belongs to two or more multi-part objects, list them all.
+modname-multi = $(sort $(foreach m,$(multi-used),\
+ $(if $(filter $*.o, $($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-m))),$(m:.o=))))
-modname = $(if $(modname-multi),$(modname-multi),$(basetarget))
+__modname = $(if $(modname-multi),$(modname-multi),$(basetarget))
+modname = $(subst $(space),:,$(__modname))
+modfile = $(addprefix $(obj)/,$(__modname))
# target with $(obj)/ and its suffix stripped
target-stem = $(basename $(patsubst $(obj)/%,%,$@))
@@ -100,6 +102,7 @@ target-stem = $(basename $(patsubst $(obj)/%,%,$@))
name-fix = $(call stringify,$(subst $(comma),_,$(subst -,_,$1)))
basename_flags = -DKBUILD_BASENAME=$(call name-fix,$(basetarget))
modname_flags = -DKBUILD_MODNAME=$(call name-fix,$(modname))
+modfile_flags = -DKBUILD_MODFILE=$(call stringify,$(modfile))
orig_c_flags = $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) \
$(ccflags-y) $(CFLAGS_$(target-stem).o)
@@ -158,7 +161,7 @@ quiet_modtag = $(if $(part-of-module),[M], )
modkern_cflags = \
$(if $(part-of-module), \
+ $(KBUILD_CFLAGS_KERNEL) $(CFLAGS_KERNEL) $(modfile_flags))
modkern_aflags = $(if $(part-of-module), \